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Finding the Third Proportional to 331,200 and 714,858

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Solution

The third proportional to 331,200 and 714,858 is: 1,542,940.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,200 : 714,858 = 714,858 : x
  2. Step 2: Convert to fraction form
    331,200/714,858 = 714,858/x
  3. Step 3: Cross multiply
    331,200x = 714,858 × 714,858
  4. Step 4: Simplify right side
    331,200x = 511,021,960,164
  5. Step 5: Solve for x
    x = 511,021,960,164/331,200
  6. Step 6: Final answer
    x = 1,542,940.70

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.